Last May, we heard about how Horizon Energy Systems was developing ahydrogen-powered quadcopterthat could (hopefully) stay airborne for hours at a time. Soon, however, that drone may not be the only one doing so. That's because Intelligent Energy has unveiled a fuel cell/battery range extender that could become standard equipment on third-party drones.

The idea behind the system is that an onboard hydrogen fuel cell generates electricity, and that electricity is in turn used to charge a linked battery. Not only should this greatly extend how long the drone can go between recharges, but those recharges should only take a couple of minutes – the fuel cell will simply need to be refilled, using a dedicated cartridge.

According to the Intelligent Energy's head of PR, Debbie Hughes, flight times of drones using the system will vary depending on the size of the aircraft. "You could have more fuel on a larger drone meaning a longer flight time, but we believe in the region of two hours," she tells us.

In flight tests of the system, it delivered power consistently enough to allow an onboard camera to record video continuously, with no interruptions.

The range extender was unveiled last week at CES, as was Walkera'smethanol-fueled range extender for drones. Intelligent Energy is now seeking commercial partners, who would be interested in integrating the technology into their aircraft.Full article here

Walkera's methanol fuel cell range extender strikes me as easier to use compared to the hydrogen fuel cell systems that have been demoed so far, for average people, as methanol is easier to acquire and manage without excessively specialized hardware or vendor lockin.

Here's a consumer fuel cell called UPP. It uses hydrogen, and you can replace your spent fuel cell at places in the UK. It's only 5V though, delivering 25 wh, and weighs 620g. A 3DR Iris+ 5100 battery delivers around 55 wh and weighs 320g. Sure wish there was more info on the Intelligent Energy fuel cell.

My friends have developed HHO Generators, delivering H2 and O2 directly into combustion chamber of Diesel motor in trucks.

Generally, it makes no sense, since more energy is consumed than generated since electrolysis of water requires excess energy delivered by generator + car battery system.

But I have studied OBD2 Diesel controller to burn extra H2 O2 fuel mix to get clean exhaust gas fumes when Diesel motor's RPM i slow (when you start from a stop and press gas pedal excessively to get your truck to move fast quick and too much oil is injected into combustion chamber to get 100% clean burned by old motor).

It works fine in case of old Diesel motors, no more black cloud behind your truck made of exhaust gases.